SDCC is a free open source, retargettable, optimizing ANSI C
compiler suite that supports a growing list of processors including the
Intel 8051, Maxim 80DS390, Zilog Z80, Z180, Rabbit 2000, gbz80,
Motorola 68HC08, S08 and STMicroelectronics STM8 targets. There also is incomplete support for the Microchip PIC16 and PIC18.

Little Registry Cleaner is an open source program designed for Microsoft's Windows Registry. Its purpose is to remove obsolete or unwanted items that build up in the registry over time in order to improve the stability & performance of your computer

.NET C# USB library for WinUSB, LibUsb-Win32, and libusb-1.0. Using the common device classes, applications work with all operating systems and drivers without modification. Lots of example code. Open source software at sourceforge.net.

Hive Mind LOIC is a version of the Low Ordbit Ion Cannon made by Praetox, which was adapted for centralized control by NewEraCracker, when the project was then taken on by me. The amongst a few fixes I added RSS control (Such as via Twitter).